Whip cream cheese, butter and vanilla with an electric mixer until fluffy (about 2 minutes). Beat in powdered sugar (add more if necessary to reach desired consistency – if your kitchen’s hot, you might need more because the butter will be softer). Makes enough to top one 13×9 cake – double recipe if using on a layered cake.

The whipped egg and milk combination sunk down perfectly in between the slices of sweet potatoes to create a perfectly tender crust (that holds together) on the bottom with a chip-like consistency around the edges. […]